TaylorMade Golf Company currently uses a two-piece construction of a forged 4140 steel face and investment cast 8620 steel body for P790 golf club irons. The cast body is welded to the forged face and then the assembly is austenitized, quenched, and tempered to form tempered martensite. It is proposed that a material substitution of 8630 steel for ...
Carburized steel grades are widely used in applications where high hardness at the surface is required in combination with good core toughness as well as high fatigue resistance. The process of carburizing lower to medium carbon steel can generally provide this combination of properties and has been practised for several decades. Such steel is very...
The yield strengths of Ti-Al-Nb alloys, which undergo stress-induced martensitic transformation, prior to the onset of plastic deformation during tensile testing, were found to obey the Hall-Petch relationship with grain size. The overall friction stress (sigma(oc)(i)) was observed to decrease with increase in Nb content while it remained more or l...
